Not just the trig stuff. I just find things with triangles to be easier. Like the all the property rules, and all that good stuff. The things with the circle, calculating the arc length was a bit difficult. All you had to do was use the formulas but if you messed up one number, your whole thing was screwed. I got straight a's in geometry all year, so I think I cleaned up well.
Rig -- Emachines T5026, 3.06ghz P4, 300W Bestec PSU, 160 sata hd, 512mb dual channel 3200 ram @ 3-3-5-8, ATI Radeon 9250 pci, dual layer 16x dvd+/-rw.